short story.
Buy GAUI 500X complete kit on eBay and crash, because of bad power solder. Buy another kit and notice with several 4min test, that is not suitable for my total weight (2.1Kg) and buy stronger Tiger-motors MT2216-12 800KV.
So these motors and ESC just take my room and decided to sell it if someone interested. here is the deal:

In that case with motors I can't see problem get 7 for the price of 5, but with ESC I give you an extra discount, free shipping and 1 ESC for free if you take all. I don't know what to do with 2 ESC left if sell you 6 of them.

So if you agree and interested let me know. Send you the price and PayPal account on PM.